{"id":605,"date":"2020-09-26T11:02:26","date_gmt":"2020-09-26T03:02:26","guid":{"rendered":"http:\/\/39.96.58.60\/?p=605"},"modified":"2022-10-18T16:45:05","modified_gmt":"2022-10-18T08:45:05","slug":"leetcode-%e9%9d%a2%e8%af%95%e9%a2%98-08-04-%e5%b9%82%e9%9b%86","status":"publish","type":"post","link":"https:\/\/www.yatenglg.cn\/blog\/?p=605","title":{"rendered":"Leetcode \u9762\u8bd5\u9898 08.04. \u5e42\u96c6"},"content":{"rendered":"<p>\u5e42\u96c6\u3002\u7f16\u5199\u4e00\u79cd\u65b9\u6cd5\uff0c\u8fd4\u56de\u67d0\u96c6\u5408\u7684\u6240\u6709\u5b50\u96c6\u3002\u96c6\u5408\u4e2d<strong>\u4e0d\u5305\u542b\u91cd\u590d\u7684\u5143\u7d20<\/strong>\u3002<\/p>\n<p>\u8bf4\u660e\uff1a\u89e3\u96c6\u4e0d\u80fd\u5305\u542b\u91cd\u590d\u7684\u5b50\u96c6\u3002<\/p>\n<p><strong>\u793a\u4f8b:<\/strong><\/p>\n<pre><strong> \u8f93\u5165<\/strong>\uff1a nums = [1,2,3]\n\n<strong> \u8f93\u51fa<\/strong>\uff1a\n\n[\n\n  [3],\n\n&nbsp; [1],\n\n&nbsp; [2],\n\n&nbsp; [1,2,3],\n\n&nbsp; [1,3],\n\n&nbsp; [2,3],\n\n&nbsp; [1,2],\n\n&nbsp; []\n\n]\n\n<\/pre>\n<p>**\u96be\u5ea6**: Medium<\/p>\n<p>**\u6807\u7b7e**: \u4f4d\u8fd0\u7b97\u3001 \u6570\u7ec4\u3001 \u56de\u6eaf\u7b97\u6cd5\u3001<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism undefined-numbers lang-python\" data-lang=\"Python\"><code>\n# -*- coding: utf-8 -*-\n# @Author  : LG\n\n\"\"\"\n\u6267\u884c\u7528\u65f6\uff1a32 ms, \u5728\u6240\u6709 Python3 \u63d0\u4ea4\u4e2d\u51fb\u8d25\u4e8696.84% \u7684\u7528\u6237\n\u5185\u5b58\u6d88\u8017\uff1a13.5 MB, \u5728\u6240\u6709 Python3 \u63d0\u4ea4\u4e2d\u51fb\u8d25\u4e8624.26% \u7684\u7528\u6237\n\n\u89e3\u9898\u601d\u8def\uff1a\n    \u56de\u6eaf\n\"\"\"\nclass Solution:\n    def subsets(self, nums: List[int]) -&gt; List[List[int]]:\n        nums.sort() # \u5148\u6392\u5e8f\uff0c\u65b9\u4fbf\u5904\u7406\u91cd\u590d\u5143\u7d20\n        n = len(nums)\n        result = []\n\n        def backtrack(index, current):\n            result.append(current[:])\n            if index &gt;= n:\n                return\n            for i in range(index, n):\n                if i&gt;0 and nums[i] == nums[i-1]:    # \u8df3\u8fc7\u91cd\u590d\u5143\u7d20\n                    continue\n                backtrack(i+1, current+[nums[i]])\n        backtrack(0, [])\n        return result<\/code><\/pre>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u5e42\u96c6\u3002\u7f16\u5199\u4e00\u79cd\u65b9\u6cd5\uff0c\u8fd4\u56de\u67d0\u96c6\u5408\u7684\u6240\u6709\u5b50\u96c6\u3002\u96c6\u5408\u4e2d\u4e0d\u5305\u542b\u91cd\u590d\u7684\u5143\u7d20\u3002 \u8bf4\u660e\uff1a\u89e3\u96c6\u4e0d\u80fd\u5305\u542b\u91cd\u590d\u7684\u5b50\u96c6\u3002 \u793a\u4f8b: \u8f93&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":[],"categories":[11,1],"tags":[],"_links":{"self":[{"href":"https:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/posts\/605"}],"collection":[{"href":"https:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=605"}],"version-history":[{"count":1,"href":"https:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/posts\/605\/revisions"}],"predecessor-version":[{"id":606,"href":"https:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=\/wp\/v2\/posts\/605\/revisions\/606"}],"wp:attachment":[{"href":"https:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=605"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=605"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yatenglg.cn\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=605"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}